The Parameters of the 0.099-eV Neutron Resonance in Sm-149

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概要

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• Measurements of the 0.099-eV resonance in Sm-149 have been made with a crystal spectrometer and a neutron velocity selector in the energy range from 0.0006 to 1 eV. Samples highly enriched to 97.42% in Sm-149 were used. The observed neutron transmissions were analysed by a shape method using a Breit-Wigner singlelevel formula. The resonance parameters obtained from the analysis are; E_0=0.0989±0.008 eV, Γ=59.5±0.8 MeV, and Γ_n^0=1.71±0.03 MeV, assuming the statistical weight factor is 9/16. the 2200 m/sec value of the total cross section is 37,000±1,600 barns.

• 社団法人日本物理学会の論文
• 1969-02-05

著者

• Asami Tetsuo

  Japan Atomic Energy Research Institute

• Okamoto Koichi

  Japan Atomic Energy Research Institute

• IDENO Kazumi

  Japan Atomic Energy Research Institute

• OHNO Yoshihisa

  Japan Atomic Energy Research Institute

関連論文

• The Parameters of the 0.099-eV Neutron Resonance in Sm-149
• Evaluation of neutron nuclear data of chromium, iron and nickel for fusion neutronics application.
• Second version of Japanese Evaluated Nuclear Data Library (JENDL-2)

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